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R19594 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The GASKET is a the manufacturer industrial component. Key specifications include material: PAPER AND GLUE OVERALL, hole_diameter: 0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, outside_diameter: 3.750 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 2.281 INCHES NOMINAL IN, bolt_circle_diameter: 2.875 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-251-4723, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
R19594
NSN: 5330-00-251-4723
FSC: 5330
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
materialPAPER AND GLUE OVERALL
hole_diameter0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
outside_diameter3.750 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter2.281 INCHES NOMINAL IN
bolt_hole_quantity6
bolt_circle_diameter2.875 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-G-12803,NO. +3313B MIL SPEC ALL MATERIAL RESPONSES OVERALL
NSN5330-00-251-4723
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: R19594 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-12803,NO. +3313B MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
CROSS-SECTIONAL THICKNESS: 0.031 INCHES NOMINAL IN
•
MATERIAL: PAPER AND GLUE OVERALL
•
STYLE DESIGNATOR: CIRCULAR
•
APERTURE DIAMETER: 2.281 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 2.875 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-12803,NO. +3313B MIL SPEC ALL MATERIAL RESPONSES OVERALL
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
MATERIALPAPER AND GLUE OVERALL
STYLE DESIGNATORCIRCULAR
APERTURE DIAMETER2.281 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER2.875 INCHES NOMINAL IN
HOLE DIAMETER0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
BOLT HOLE QUANTITY6
OUTSIDE DIAMETER3.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
19594Interchangeable
interchangeable cross-reference
interchangeable
932892-1BInterchangeable
interchangeable cross-reference
interchangeable
N0078-115Interchangeable
interchangeable cross-reference
interchangeable
CC6323-115Interchangeable
interchangeable cross-reference
interchangeable
22217Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R19594?
R19594 is a GASKET.
What parts can replace R19594?
There are 5 known substitutes for R19594: 19594, 932892-1B, N0078-115 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R19594?
R19594 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-251-4723. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026